learning interoperability from web2.0

Geomatics Engineer by profession Neogeographer at heart Shoaib Burq

quot;It is neither the strongest species that survive, nor the most intelligent, but the ones most responsive to changequot; Charles Darwin

lessons in interoperability from web2.0

mash up artist my online GIS app

The Dongle chastity belt of the early GIS professional

Open Geospatial Consortium OGC’s roots are in GRASS/Open Source

GIS in Government & University Research GIS in Government, Business & Specialist industry

Some OGC Standards  Simple Features Specification  Web Mapping Service (WMS)  Web Feature Service (transactional) (WFS-t)  Web Coverage Service (WCS)  Web Processing Service (WPS)  Sensor Observation Service (SOS)  OGC Catalogue Service (OCS)  Style Layer Descriptor (SLD)

OGC specs in action Life Saving Victoria Incident & Hazard Mapping System http://lifesaver.vpac.org

Business Objectives collect report decision

Technical Objectives “fit for purpose” address all business needs but not too complex for user

Technical Objectives work at variable network speeds even 56k

Technical Objectives hazards & incidents data collection from remote sites into a server-side repository

Technical Objectives distribute LSV corporate data such as ABSAMP database to LSC’s ABSAMP = Australian Beach Safety and Management Program

Technical Objectives hierarchical & role-based authentication local - state - national

Technical Objectives handle the temporal dimension of hazards e.g. rips may last only a few hours

Technical Objectives budgetary limitations leverage open source & free data

M a p b u ild e r W M S , W F S - T C lie n t IN T E R N E T S p a t ia l G e t R e q u e s t S p a t ia l P u t R e q u e s t T IE R 1 - W E B A P P L IC A T IO N M a p L a y e rs over H TTP A e r ia l P h o t o ( E C W ) + IN T E R N E T V ic M a p D a t a s e t s G e o s e rv e r (W M S S e rv e r) (W F S -T S e rv e r) T IE R 2 - W E B S E R V IC E S p a t ia l S Q L Q u e r ie s G D A L IO e n g i n e Sp at ia lQ ue r ie s B o u n d a r ie s D a t a P o s t G IS s t o r e f o r T r a n s a c t io n a l D a t a R a s te r /V e c to r R a d a r & W e a th e r D a ta D a ta o n F ile S y s t e m T IE R 3 - S P A T IA L IS E D D A T A B A S E W M S S E R V IC E S B lu e M a r b le Source: http://www.foss4g2006.org/contributionDisplay.py?contribId=69&sessionId=52&confId=1

Three Tier Architecture Web Client Application Server Spatial Database

PostGIS: Simple Feature Specification

Simple Feature Specification

PostGIS: Simple Feature Specification

Geoserver: WCS, WMS, WFS-T & SLD PostGIS: Simple Feature Specification

Web Mapping Service (WMS) dumb image

Web Mapping Service (WMS) for humans consumption only

Web Mapping Service (WMS) a bit like a scanned PDF document

Style Layer Descriptor (SLD) way to specify symbology and … rules on how to render maps & legends

Web Feature Service Transactional (WFS-t) actual GML (vector) data

Web Feature Service Transactional (WFS-t) for machines consumption

Web Feature Service Transactional (WFS-t) a bit like an editable Word document defines create, read, update & delete on geographic features

Web Coverage Service (WCS) think WFS for raster actual raster data online for machine consumption

Geoserver: WCS, WMS, WFS-T & SLD PostGIS: Simple Feature Specification

Mapbuilder: WMS & WFS-T client Geoserver: WCS, WMS, WFS-T & SLD PostGIS: Simple Feature Specification

WMS, WFS-t Clients interface humans & complex technology use requests converted to OGC compliant xml decodes the OGC responses for human consumption

Mapbuilder: WMS & WFS-T client Geoserver: WCS, WMS, WFS-T & SLD PostGIS: Simple Feature Specification

Shapefile Simple GetFeature WFS Feature Spec Oracle GetMap MapBuilder WMS Spatial GetCoverage WCS PostGIS

Lets Watch it in Action action

Where did I/OGC go wrong? built for interoperability or built using interoperable standards

The Second Shift a look at history

Day of the long tail

“Simple, intuitive and timely access to useful geographic data & information is my right and not a privilege” The new customer

It’s easy to dismiss Web2.0 at first glance

You cannot be serious!

http://kiva.org

“Simple, intuitive and timely access to useful geographic data & information is my right and not a privilege” The new customer

What do they get from us? WFS, WMS, WCS, WPS, WxS, blah, blah, blah …

What do they get from us? forgot it! WFS, WMS, WCS, WPS, WxS, blah, blah, blah …

they create their own community standards for sharing data … but are they any good?

Are they any good? “These powerful forces are creating ‘tensions’ that impact how we shape and create standards for the global community …

Are they any good? “Many of these tensions and associated market forces are the same ones that are driving the evolution of the Web (Web 2.0 and Where 2.0) and the integrated GeoWeb …

Are they any good? KML and GeoRSS are two new formats that are making great headway on the Web …

Are they any good? … strong collaboration between the quot;traditionalquot; standards community and the Where 2.0 community can provide the greatest benefit for everyone” Can you guess who said this?

Are they any good? … strong collaboration between the quot;traditionalquot; standards community and the Where 2.0 community can provide the greatest benefit for everyone” Carl Reed CTO, Open Geospatial Consortium, Inc.

let’s take GeoRSS + =

Atom & GeoRSS

Interoperable out of the box A standard identification system

Interoperable out of the box A standard interaction protocol

Interoperable out of the box Standard data exchange formats

GeoNetwork

National Snow & Ice Data Centre http://nsidc.org/news/nsidc_rss.html

NOAA Pacific Tsunami Warning Centre http://www.prh.noaa.gov/ptwc/subscribe.php

UK Lib Dem Networking Site http://www.flocktogether.org.uk

http://mapufacture.com/maps/1268-San-Di

http://tsunami.jrc.it/model/getRSS.asp?type=2 http://xrl.us/tsunamimodel

http://mapufacture.com/maps/1268-San-Di We want to integrate with everything. We want to integrate with your service and data. And we want to improve, continuously. -- Andrew Turner (Mapufacture)

Microformats & Semanitcs http://microformats.org following the GeoRSS philosophy of leveraging existing standards XHTML

Microformats & Semanitcs

Microformats & Semanitcs Much in the same way that operating systems currently associate particular file types with specific applications, future Web browsers are likely going to associate semantically marked up data you encounter on the Web with specific applications, either on your system or online. -- Alex Faaborg Mozilla Firefox Developer

they wanted data didn’t they?

www.geonames.org Open Source Geocoding Geonames

www.openstreetmap.org Open Source Streets Data

http://openaerialmap.org Open Source Aerial Photography

Pict’Earth

http://hypercube.telascience.org/fire

What’s next? Micro Satellites, maybe?

Barbarians are at the door! whoever thought of just doing things yourself?

other’s are taking notice …

“…we have acquired ImageAmerica, a company that builds high resolution cameras for the collection of aerial imagery…”

“… acquired Vexcel Corp., a worldwide leader in photogrammetry, imagery and remote sensing technologies …”

OGC is responding Google & Microsoft principle members of OGC

Web Mapping Service Cache (WMS-C) still a proposal cacheable map image tiles - performance in current GeoServer release

What do we do? what role do National Mapping Agencies have in this disruptive environment? threat or opportunity

What to do? listen to what they want -- which is to …

http://flickr.com/photos/robertgrove/111165074/

http://flickr.com/photos/robertgrove/111165074/ “help themselves” “help others” “do good” openness is key

Summary

quot;It is neither the strongest species that survive, nor the most intelligent, but the ones most responsive to changequot; Charles Darwin

Acknowledgements Andrew Turner (GeoRSS examples) http://highearthorbit.com Mikel Maron (GeoRSS examples) http://brainoff.com Charlie Savage (Atom vs. WFS) http://cfis.savagexi.com http://blog.mapbuzz.com/atom_and_wfs.html

All those Cool Images Transistor: http://en.wikipedia.org/wiki/Image:Electronic_component_transistors.jpg Assembly Line: http://en.wikipedia.org/wiki/Image:A-line1913.jpg School of Athens: http://en.wikipedia.org/wiki/Image:Sanzio_01.jpg GRASS logo: http://en.wikipedia.org/wiki/Image:Grasslogo_vector_big.png OGC Simple Features: (adapted from) http://opengeospatial.org/ 80’s http://www.nostalgiacentral.com/pop/fashion80.htm Tux http://en.wikipedia.org/wiki/Image:Tux-G2.png Roadkill http://flickr.com/photos/gmblogs/215084239 CD stack http://flickr.com/photos/aenygmatic/416687548 Dongle http://www.bios-passwort.de Grass http://flickr.com/photos/ezu/54539889 Grass (2) http://flickr.com/photos/terdata/287937963 Proprietary http://flickr.com/photos/vrogy/525583222 Web20 http://flickr.com/photos/alexmuse/255998171 Hard Drive http://flickr.com/photos/shadphotos/207233715

Thank you Questions & Discussion

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learning interoperability from web2.0

by Shoaib Burq on Nov 13, 2007

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learning interoperability from web2.0 — Presentation Transcript